X-Git-Url: https://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=gl_backend.h;h=5ecff60fd7c8abb6e3c89991f6211fdd3aa659b5;hp=a8f904c592b1f4e8e6513e5a75529882af6b8476;hb=624b2a6616c0e07574000dba59e0f46c8f12d8f9;hpb=ad9242649e172f17d2670fb120c2f5171553d4f2

diff --git a/gl_backend.h b/gl_backend.h
index a8f904c5..5ecff60f 100644
--- a/gl_backend.h
+++ b/gl_backend.h
@@ -2,49 +2,68 @@
 #ifndef GL_BACKEND_H
 #define GL_BACKEND_H
 
-#define MAX_TEXTUREUNITS 8
+// how many texture units to track state on (backendunits/backendimageunits/backendarrayunits are limited to this value)
+#define MAX_TEXTUREUNITS 64
 
 #define POLYGONELEMENTS_MAXPOINTS 258
-extern int polygonelements[768];
-
-void GL_DrawRangeElements(int firstvert, int endvert, int indexcount, int *index);
-
-void GL_SetupView_ViewPort (int x, int y, int width, int height);
-void GL_SetupView_Orientation_Identity (void);
-void GL_SetupView_Orientation_FromEntity (vec3_t origin, vec3_t angles);
-void GL_SetupView_Mode_Perspective (double aspect, double fovx, double fovy, double zNear, double zFar);
-void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar);
-void GL_UseColorArray(void);
+extern unsigned short polygonelements[(POLYGONELEMENTS_MAXPOINTS-2)*3];
+#define QUADELEMENTS_MAXQUADS 128
+extern unsigned short quadelements[QUADELEMENTS_MAXQUADS*6];
+
+void GL_SetupView_Orientation_Identity(void);
+void GL_SetupView_Orientation_FromEntity(const matrix4x4_t *matrix);
+void GL_SetupView_Mode_Perspective(double frustumx, double frustumy, double zNear, double zFar);
+void GL_SetupView_Mode_PerspectiveInfiniteFarClip(double frustumx, double frustumy, double zNear);
+void GL_SetupView_Mode_Ortho(double x1, double y1, double x2, double y2, double zNear, double zFar);
+void GL_SetupView_ApplyCustomNearClipPlane(double normalx, double normaly, double normalz, double dist);
+void GL_BlendFunc(int blendfunc1, int blendfunc2);
+void GL_DepthMask(int state);
+void GL_DepthTest(int state);
+void GL_DepthRange(float nearfrac, float farfrac);
+void GL_PolygonOffset(float planeoffset, float depthoffset);
+void GL_CullFace(int state);
+void GL_AlphaTest(int state);
+void GL_ColorMask(int r, int g, int b, int a);
 void GL_Color(float cr, float cg, float cb, float ca);
+void GL_TransformToScreen(const vec4_t in, vec4_t out);
+void GL_LockArrays(int first, int count);
+void GL_ActiveTexture(unsigned int num);
+void GL_ClientActiveTexture(unsigned int num);
+void GL_Scissor(int x, int y, int width, int height);
+void GL_ScissorTest(int state);
+void GL_Clear(int mask);
 
-extern cvar_t gl_lockarrays;
+unsigned int GL_Backend_CompileProgram(int vertexstrings_count, const char **vertexstrings_list, int geometrystrings_count, const char **geometrystrings_list, int fragmentstrings_count, const char **fragmentstrings_list);
+void GL_Backend_FreeProgram(unsigned int prog);
 
-extern int c_meshelements, c_meshs;
+extern cvar_t gl_lockarrays;
+extern cvar_t gl_mesh_copyarrays;
+extern cvar_t gl_paranoid;
+extern cvar_t gl_printcheckerror;
 
-//input to R_Mesh_State
-typedef struct
+//input to R_Mesh_TextureState
+typedef struct rmeshstate_s
 {
-	int depthwrite; // force depth writing enabled even if polygon is not opaque
-	int depthdisable; // disable depth read/write entirely
-	int blendfunc1;
-	int blendfunc2;
-	//int wantoverbright;
+	// textures
 	int tex1d[MAX_TEXTUREUNITS];
 	int tex[MAX_TEXTUREUNITS];
 	int tex3d[MAX_TEXTUREUNITS];
 	int texcubemap[MAX_TEXTUREUNITS];
+	// texture combine settings
 	int texrgbscale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
+	int texalphascale[MAX_TEXTUREUNITS]; // used only if COMBINE is present
+	int texcombinergb[MAX_TEXTUREUNITS]; // works with or without combine for some operations
+	int texcombinealpha[MAX_TEXTUREUNITS]; // does nothing without combine
+	// matrices
+	matrix4x4_t texmatrix[MAX_TEXTUREUNITS];
+	// pointers
+	const float *pointer_texcoord[MAX_TEXTUREUNITS]; // 2D
+	const float *pointer_texcoord3f[MAX_TEXTUREUNITS]; // 3D
+	int pointer_texcoord_bufferobject[MAX_TEXTUREUNITS]; // 2D and 3D
+	size_t pointer_texcoord_bufferoffset[MAX_TEXTUREUNITS]; // 2D and 3D
 }
 rmeshstate_t;
 
-// overbright rendering scale for the current state
-extern int r_lightmapscalebit;
-extern float r_colorscale;
-extern float *varray_vertex;
-extern float *varray_color;
-extern float *varray_texcoord[MAX_TEXTUREUNITS];
-extern int mesh_maxverts;
-
 // adds console variables and registers the render module (only call from GL_Init)
 void gl_backend_init(void);
 
@@ -55,31 +74,54 @@ void R_Mesh_Start(void);
 // (only valid after R_Mesh_Start)
 void R_Mesh_Finish(void);
 
-// sets up the requested transform matrix
+// allocates a static element array buffer object
+// (storing triangle data in video memory)
+int R_Mesh_CreateStaticEBO(void *data, size_t size);
+// frees an element array buffer object
+void R_Mesh_DestroyEBO(int bufferobject);
+// allocates a static vertex/element array buffer object
+// (storing vertex or element data in video memory)
+// target is GL_ELEMENT_ARRAY_BUFFER_ARB (triangle elements)
+// or GL_ARRAY_BUFFER_ARB (vertex data)
+int R_Mesh_CreateStaticBufferObject(unsigned int target, void *data, size_t size, const char *name);
+// frees a vertex/element array buffer object
+void R_Mesh_DestroyBufferObject(int bufferobject);
+void GL_Mesh_ListVBOs(qboolean printeach);
+
+// sets up the requested vertex transform matrix
 void R_Mesh_Matrix(const matrix4x4_t *matrix);
-
-// sets up the requested state
-void R_Mesh_State(const rmeshstate_t *m);
-
-// sets up the requested main state
-void R_Mesh_MainState(const rmeshstate_t *m);
-
-// sets up the requested texture state
+// sets the vertex array pointer
+void R_Mesh_VertexPointer(const float *vertex3f, int bufferobject, size_t bufferoffset);
+// sets the color array pointer (GL_Color only works when this is NULL)
+void R_Mesh_ColorPointer(const float *color4f, int bufferobject, size_t bufferoffset);
+// sets the texcoord array pointer for an array unit
+void R_Mesh_TexCoordPointer(unsigned int unitnum, unsigned int numcomponents, const float *texcoord, int bufferobject, size_t bufferoffset);
+// sets all textures bound to an image unit (multiple can be non-zero at once, according to OpenGL rules the highest one overrides the others)
+void R_Mesh_TexBindAll(unsigned int unitnum, int tex1d, int tex2d, int tex3d, int texcubemap);
+// sets these are like TexBindAll with only one of the texture indices non-zero
+// (binds one texture type and unbinds all other types)
+void R_Mesh_TexBind1D(unsigned int unitnum, int texnum);
+void R_Mesh_TexBind(unsigned int unitnum, int texnum);
+void R_Mesh_TexBind3D(unsigned int unitnum, int texnum);
+void R_Mesh_TexBindCubeMap(unsigned int unitnum, int texnum);
+// sets the texcoord matrix for a texenv unit
+void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix);
+// sets the combine state for a texenv unit
+void R_Mesh_TexCombine(unsigned int unitnum, int combinergb, int combinealpha, int rgbscale, int alphascale);
+// set up the requested texture state
 void R_Mesh_TextureState(const rmeshstate_t *m);
+// set up a blank texture state (faster/easier specialized version of R_Mesh_TextureState)
+void R_Mesh_ResetTextureState(void);
 
-// enlarges vertex arrays if they are too small
-#define R_Mesh_ResizeCheck(numverts) if ((numverts) > mesh_maxverts) _R_Mesh_ResizeCheck(numverts);
-void _R_Mesh_ResizeCheck(int numverts);
-
-// renders the mesh in the varray_* buffers
-void R_Mesh_Draw(int numverts, int numtriangles, int *elements);
+// renders a mesh
+void R_Mesh_Draw(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int bufferobject3i, int bufferobject3s);
 
-// saves a section of the rendered frame to a .tga file
-qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height);
+// saves a section of the rendered frame to a .tga or .jpg file
+qboolean SCR_ScreenShot(char *filename, unsigned char *buffer1, unsigned char *buffer2, unsigned char *buffer3, int x, int y, int width, int height, qboolean flipx, qboolean flipy, qboolean flipdiagonal, qboolean jpeg, qboolean gammacorrect);
 // used by R_Envmap_f and internally in backend, clears the frame
-void R_ClearScreen(void);
-// invoke refresh of frame
-void SCR_UpdateScreen (void);
+void R_ClearScreen(qboolean fogcolor);
+// invoke refresh of loading plaque (nothing else seen)
+void SCR_UpdateLoadingScreen(qboolean clear);
 
 #endif